Pneumatic tire tread and buttress



FIG. 1 is a perspective view of a pneumatic tire tread and buttress showing our new design, it being understood that the pattern is repeated uniformly throughout the circumference of the tread and buttress, the broken lines being for illustrative purposes only and form no part of the claimed design;

FIG. 2 is a perspective view thereof taken from the opposite side;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a fragmentary front elevational view thereof on an enlarged scale;

FIG. 5 is a side elevational view thereof; and,

FIG. 6 is an opposite side elevational view thereof. 

The ornamental design for a pneumatic tire tread and butress, as shown and described. 